What is the horsepower rating for this rotating assembly?

With the standard 7/16" ARP 8740 cap screws, this assembly is rated for up to 900 horsepower. If you opt for the ARP 2000 cap screws, the rating increases to 1,500 horsepower.

What is the compression ratio impact of the -3cc piston dish?

The -3cc piston dish is a design choice that will affect your engine's final compression ratio. The exact ratio will depend on your cylinder head volume, head gasket thickness, and bore/stroke combination. It's recommended to calculate this with your engine builder.

Specifications

Brand: Manley Performance
Part #: 38572RHX
UPC: 807298087054

Manley Rotating Assembly, BBC 572 4.250 STROKE/4.625/-3cc

Name: Manley Rotating Assembly, BBC 572 4.250 STROKE/4.625/-3cc
Brand: Manley Performance
SKU: manley-performance-manley-rotating-assembly-bbc-572-4-250-stroke-4-625-3cc-t14-881205
Price: 4012.19 USD
Availability: BackOrder

$4012.19

On Backorder

Order now to reserve yours — we'll ship as soon as stock arrives. Full refund if we're unable to fulfill.

Manley BBC 572 rotating assembly with a 4.250" stroke. Built with 4340 forged steel components for serious power.

Key Features

The crankshaft is constructed from 4340 forged steel for strength.
Includes 4340 forged steel H-beam connecting rods with 7/16" ARP 8740 cap screws.
The connecting rods can be upgraded with optional ARP 2000 cap screws for higher horsepower applications.
Features 2618 forged aluminum Platinum Series pistons.
Pistons come with premium chrome moly wrist pins.
The assembly is designed for a 4.250-inch stroke and a 4.625-inch bore.

This rotating assembly is designed for BBC (Big Block Chevrolet) engines. Check manufacturer specifications to confirm compatibility with your specific engine build.

⚠️ CA WARNING: This product can expose you to chemicals known to the State of California to cause cancer and/or birth defects or other reproductive harm. Learn more

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About this part

Product Details

Starting with a 4340 forged steel crankshaft is key for handling the demands of a big-block Chevrolet 572ci engine. This Manley rotating assembly is built around that solid foundation, featuring a 4.250-inch stroke to help achieve that displacement. The included 4340 forged steel H-beam connecting rods are well-built and come with 7/16-inch ARP 8740 cap screws, which are rated for up to 900 horsepower. If you're planning for even more power, you can opt for ARP 2000 cap screws, pushing the capability to 1,500 horsepower.

Complementing the crankshaft and rods are Manley's Platinum Series pistons, forged from 2618 aluminum for a strong yet lightweight combination. These pistons are paired with premium chrome moly wrist pins, ensuring durability under high stress. The -3cc piston dish is designed to work with specific cylinder head combinations to achieve your desired compression ratio. This assembly is a robust choice for anyone rebuilding or building a high-performance BBC engine that needs to handle significant power.

Keep in mind that this assembly is not CARB approved and cannot be shipped to California. It's important to consult with your engine builder to ensure this rotating assembly meets the specific requirements for your build, especially regarding compression and overall power goals.